{"id":"CVE-2026-15711","aliases":["ALSA-2026:68234","ALSA-2026:68235","ALSA-2026:68266","AZL-92400","CLSA-2026-1790063765","CLSA-2026-1790076145","DEBIAN-CVE-2026-15711","EUVD-2026-44428","GHSA-w948-qrw5-cffc","OESA-2026-3692","OESA-2026-3694","OESA-2026-3695","OESA-2026-3779","OESA-2026-3780","OESA-2026-3781","OESA-2026-3782","OESA-2026-3825","RHSA-2026:68234","RHSA-2026:68235","RHSA-2026:68266","RHSA-2026:68612","RHSA-2026:69108","RHSA-2026:69297","RHSA-2026:69863","RHSA-2026:70598","RHSA-2026:70599","RHSA-2026:71389","RLSA-2026:68234","RLSA-2026:68266","ROOT-OS-DEBIAN-12-CVE-2026-15711","ROOT-OS-DEBIAN-13-CVE-2026-15711","SUSE-SU-2026:24368-1","SUSE-SU-2026:24470-1","SUSE-SU-2026:4557-1","SUSE-SU-2026:4558-1","SUSE-SU-2026:4690-1","SUSE-SU-2026:4703-1","SUSE-SU-2026:4739-1","UBUNTU-CVE-2026-15711","openSUSE-SU-2026:12084-1","openSUSE-SU-2026:12365-1","openSUSE-SU-2026:22181-1"],"status":"published","title":"Libsoup: soupwebsocketconnection: libsoup: websocket remote denial of service via oversized control frame protocol violation","description":"A vulnerability was found in libsoup's WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00745,"percentile":0.55246,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-770"],"published":"2026-07-14T19:45:47Z","modified":"2026-11-11T12:57:51Z","fixes":[{"ecosystem":"AlmaLinux:8","package":"libsoup","fixed_in":["2.62.3-15.el8_10"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"libsoup-devel","fixed_in":["2.62.3-15.el8_10"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP4","package":"libsoup","fixed_in":["2.71.0-22.oe2003sp4"],"sources":["osv"]},{"ecosystem":"openEuler:22.03-LTS-SP4","package":"libsoup","fixed_in":["2.74.2-23.oe2203sp4"],"sources":["osv"]},{"ecosystem":"openEuler:24.03-LTS-SP1","package":"libsoup","fixed_in":["2.74.3-26.oe2403sp1"],"sources":["osv"]},{"ecosystem":"Red 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support"}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:68234","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:68235","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:68266","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:68612","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:69108","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:69297","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:69863","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:70598","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:70599","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:71389","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:98453","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:98560","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-15711","tags":["vdb-entry","x_refsource_REDHAT","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2499924","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://gitlab.gnome.org/GNOME/libsoup/-/issues/515","tags":["exploit","article","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15711","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-w948-qrw5-cffc"},{"url":"https://access.redhat.com/security/cve/CVE-2026-15709","tags":["report"]},{"url":"https://bugzilla.redhat.com/2499922","tags":["report"]},{"url":"https://bugzilla.redhat.com/2499924","tags":["report"]},{"url":"https://errata.almalinux.org/9/ALSA-2026-68234.html","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-85197","tags":["report"]},{"url":"https://bugzilla.redhat.com/2528425","tags":["report"]},{"url":"https://errata.almalinux.org/10/ALSA-2026-68235.html","tags":["advisory"]},{"url":"https://errata.almalinux.org/8/ALSA-2026-68266.html","tags":["advisory"]},{"url":"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1790063765.html","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15709","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66339","tags":["advisory"]},{"url":"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1790076145.html","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-15711","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3692","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12548","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12549","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66338","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77014","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77680","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3694","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3695","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3779","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3780","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3781","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3782","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3825","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2499922","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_68234.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-15709","tags":["advisory"]},{"url":"https://gitlab.gnome.org/GNOME/libsoup/-/issues/511","tags":["article"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-15711","tags":["advisory","report"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2528425","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_68235.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-85197","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85197","tags":["advisory"]},{"url":"https://gitlab.gnome.org/GNOME/libsoup/-/work_items/552","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_68266.json","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_68612.json","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_69108.json","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_69297.json","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_69863.json","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_70598.json","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_70599.json","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_71389.json","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2026:68234","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2026:68266","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202624368-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1271446","tags":["report"]},{"url":"https://bugzilla.suse.com/1271447","tags":["report"]},{"url":"https://bugzilla.suse.com/1271448","tags":["report"]},{"url":"https://bugzilla.suse.com/1271449","tags":["report"]},{"url":"https://bugzilla.suse.com/1272195","tags":["report"]},{"url":"https://bugzilla.suse.com/1272196","tags":["report"]},{"url":"https://bugzilla.suse.com/1273156","tags":["report"]},{"url":"https://bugzilla.suse.com/1283299","tags":["report"]},{"url":"https://bugzilla.suse.com/1283300","tags":["report"]},{"url":"https://bugzilla.suse.com/1283301","tags":["report"]},{"url":"https://bugzilla.suse.com/1283302","tags":["report"]},{"url":"https://bugzilla.suse.com/1283303","tags":["report"]},{"url":"https://bugzilla.suse.com/1283304","tags":["report"]},{"url":"https://bugzilla.suse.com/1283831","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-102555","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-102556","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-102557","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-102558","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-102559","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-102560","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-103399","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12547","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12548","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-15711","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-15712","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-15713","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-15714","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-2708","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-66339","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202624470-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264557-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1271401","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12478","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264558-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264690-1/","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-0716","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-1539","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264703-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1275988","tags":["report"]},{"url":"https://bugzilla.suse.com/1276759","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-77014","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-77680","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264739-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-15711","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-15709","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-3099","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-3633","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-66337","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-15711","title":"Libsoup: soupwebsocketconnection: libsoup: websocket remote denial of service via oversized control frame protocol violation","description":"A vulnerability was found in libsoup's WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.","status":"published","published":"2026-07-14T19:45:47.784Z","modified":"2026-11-11T12:57:51.673Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-11T13:28:05.136075Z"}],"euvd":[{"id":"EUVD-2026-44428","description":"A vulnerability was found in libsoup's WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.","status":"published","published":"2026-07-14T19:45:47Z","modified":"2026-11-11T12:57:51Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-11T14:28:59.314266Z"}],"ghsa":[{"id":"GHSA-w948-qrw5-cffc","title":"A vulnerability was found in libsoup's WebSocket frame parsing implementation. The library fails...","description":"A vulnerability was found in libsoup's WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.","status":"published","published":"2026-07-14T21:32:16Z","modified":"2026-11-11T15:31:38Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-11T15:34:48.112751Z"}],"nvd":[{"id":"CVE-2026-15711","description":"A vulnerability was found in libsoup's WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.","status":"published","published":"2026-07-14T20:16:57.177Z","modified":"2026-11-11T13:17:25.16Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-770"],"updated_at":"2026-11-11T15:25:14.400795Z"}],"osv":[{"id":"DEBIAN-CVE-2026-15711","description":"A vulnerability was found in libsoup's WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.","status":"published","published":"2026-07-14T20:16:57.177Z","modified":"2026-10-31T16:01:41.722493443Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:52.562592Z"},{"id":"OESA-2026-3692","title":"libsoup security update","description":"libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soup_headers_parse() can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to crash an application using libsoup or potentially disclose heap memory contents.(CVE-2026-12548)\n\nThe fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading to malformed HTTP 206 responses and log flooding.(CVE-2026-12549)\n\nA vulnerability was found in libsoup\u0026apos;s WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.(CVE-2026-15711)\n\nA flaw was found in libsoup. The chunked transfer encoding parser uses a permissive parsing function for chunk sizes that silently accepts inputs violating RFC 9112, including leading whitespace, plus sign prefixes, and trailing invalid characters. When libsoup operates behind a strict frontend proxy, this parsing differential can be exploited to smuggle HTTP requests.(CVE-2026-66338)\n\nA flaw was found in libsoup\u0026apos;s SoupServer HTTP Range header processing. The sort_ranges() comparator in soup-message-headers.c truncates a 64-bit subtraction result to 32-bit int, flipping the sign for range offsets differing by more than INT_MAX. This causes silent omission of requested byte ranges from HTTP 206 Partial Content responses on resources larger than approximately 2 GB.(CVE-2026-77014)\n\nAn algorithmic complexity flaw exists in libsoup\u0026apos;s HTTP Range header processing that persists after the CVE-2025-32907 fix. CVE-2025-32907 addressed memory amplification when a client repeated the same range many times in a single Range header. Commit 9bb92f7a corrected merge correctness in soup_message_headers_get_ranges_internal() in libsoup/soup-message-headers.c, but the coalescing loop still removes merged ranges using g_array_remove_index() for each coalesced element. Because GArray is contiguous, each mid-array removal performs an O(N) memmove. When many identical satisfiable ranges are supplied (for example bytes=0-0 repeated thousands of times), the loop performs O(N²) work coalescing them into a single range. The vulnerable path is reachable server-side from handle_partial_get() in libsoup/server/http1/soup-server-message-io-http1.c when a SoupServer handler returns HTTP 200 with a non-empty body. No authentication is required. The number of ranges is bounded only by the maximum request header size (~100 KiB), allowing roughly 25,000 ranges per request. This is a CPU exhaustion / availability issue only. No memory corruption or information disclosure occurs.(CVE-2026-77680)","status":"published","published":"2026-09-05T15:03:59Z","modified":"2026-09-05T15:16:37.827333611Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3694","title":"libsoup3 security update","description":"Libsoup is an HTTP library implementation in C. It was originally part of a SOAP (Simple Object Access Protocol) implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages.\r\n\r\nSecurity Fix(es):\n\nA heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soup_headers_parse() can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to crash an application using libsoup or potentially disclose heap memory contents.(CVE-2026-12548)\n\nThe fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading to malformed HTTP 206 responses and log flooding.(CVE-2026-12549)\n\nA vulnerability was found in libsoup\u0026apos;s WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.(CVE-2026-15711)\n\nA flaw was found in libsoup\u0026apos;s SoupServer HTTP Range header processing. The sort_ranges() comparator in soup-message-headers.c truncates a 64-bit subtraction result to 32-bit int, flipping the sign for range offsets differing by more than INT_MAX. This causes silent omission of requested byte ranges from HTTP 206 Partial Content responses on resources larger than approximately 2 GB.(CVE-2026-77014)\n\nAn algorithmic complexity flaw exists in libsoup\u0026apos;s HTTP Range header processing that persists after the CVE-2025-32907 fix. CVE-2025-32907 addressed memory amplification when a client repeated the same range many times in a single Range header. Commit 9bb92f7a corrected merge correctness in soup_message_headers_get_ranges_internal() in libsoup/soup-message-headers.c, but the coalescing loop still removes merged ranges using g_array_remove_index() for each coalesced element. Because GArray is contiguous, each mid-array removal performs an O(N) memmove. When many identical satisfiable ranges are supplied (for example bytes=0-0 repeated thousands of times), the loop performs O(N²) work coalescing them into a single range. The vulnerable path is reachable server-side from handle_partial_get() in libsoup/server/http1/soup-server-message-io-http1.c when a SoupServer handler returns HTTP 200 with a non-empty body. No authentication is required. The number of ranges is bounded only by the maximum request header size (~100 KiB), allowing roughly 25,000 ranges per request. This is a CPU exhaustion / availability issue only. No memory corruption or information disclosure occurs.(CVE-2026-77680)","status":"published","published":"2026-09-05T15:04:01Z","modified":"2026-09-05T15:16:37.83041532Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3695","title":"libsoup3 security update","description":"Libsoup is an HTTP library implementation in C. It was originally part of a SOAP (Simple Object Access Protocol) implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages.\r\n\r\nSecurity Fix(es):\n\nA heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soup_headers_parse() can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to crash an application using libsoup or potentially disclose heap memory contents.(CVE-2026-12548)\n\nThe fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading to malformed HTTP 206 responses and log flooding.(CVE-2026-12549)\n\nA vulnerability was found in libsoup\u0026apos;s WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.(CVE-2026-15711)\n\nA flaw was found in libsoup\u0026apos;s SoupServer HTTP Range header processing. The sort_ranges() comparator in soup-message-headers.c truncates a 64-bit subtraction result to 32-bit int, flipping the sign for range offsets differing by more than INT_MAX. This causes silent omission of requested byte ranges from HTTP 206 Partial Content responses on resources larger than approximately 2 GB.(CVE-2026-77014)\n\nAn algorithmic complexity flaw exists in libsoup\u0026apos;s HTTP Range header processing that persists after the CVE-2025-32907 fix. CVE-2025-32907 addressed memory amplification when a client repeated the same range many times in a single Range header. Commit 9bb92f7a corrected merge correctness in soup_message_headers_get_ranges_internal() in libsoup/soup-message-headers.c, but the coalescing loop still removes merged ranges using g_array_remove_index() for each coalesced element. Because GArray is contiguous, each mid-array removal performs an O(N) memmove. When many identical satisfiable ranges are supplied (for example bytes=0-0 repeated thousands of times), the loop performs O(N²) work coalescing them into a single range. The vulnerable path is reachable server-side from handle_partial_get() in libsoup/server/http1/soup-server-message-io-http1.c when a SoupServer handler returns HTTP 200 with a non-empty body. No authentication is required. The number of ranges is bounded only by the maximum request header size (~100 KiB), allowing roughly 25,000 ranges per request. This is a CPU exhaustion / availability issue only. No memory corruption or information disclosure occurs.(CVE-2026-77680)","status":"published","published":"2026-09-05T15:04:01Z","modified":"2026-09-05T15:16:38.128544825Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3779","title":"libsoup security update","description":"libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA vulnerability was found in libsoup\u0026apos;s WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.(CVE-2026-15711)","status":"published","published":"2026-09-14T16:34:16Z","modified":"2026-09-13T16:45:39.95998404Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3780","title":"libsoup security update","description":"libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA vulnerability was found in libsoup\u0026apos;s WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.(CVE-2026-15711)","status":"published","published":"2026-09-14T16:34:17Z","modified":"2026-09-13T16:45:39.215706939Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3781","title":"libsoup security update","description":"libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA vulnerability was found in libsoup\u0026apos;s WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.(CVE-2026-15711)","status":"published","published":"2026-09-14T16:34:18Z","modified":"2026-09-13T16:45:39.813158756Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3782","title":"libsoup security update","description":"libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soup_headers_parse() can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to crash an application using libsoup or potentially disclose heap memory contents.(CVE-2026-12548)\n\nThe fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading to malformed HTTP 206 responses and log flooding.(CVE-2026-12549)\n\nA vulnerability was found in libsoup\u0026apos;s WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.(CVE-2026-15711)\n\nA flaw was found in libsoup\u0026apos;s SoupServer HTTP Range header processing. The sort_ranges() comparator in soup-message-headers.c truncates a 64-bit subtraction result to 32-bit int, flipping the sign for range offsets differing by more than INT_MAX. This causes silent omission of requested byte ranges from HTTP 206 Partial Content responses on resources larger than approximately 2 GB.(CVE-2026-77014)\n\nAn algorithmic complexity flaw exists in libsoup\u0026apos;s HTTP Range header processing that persists after the CVE-2025-32907 fix. CVE-2025-32907 addressed memory amplification when a client repeated the same range many times in a single Range header. Commit 9bb92f7a corrected merge correctness in soup_message_headers_get_ranges_internal() in libsoup/soup-message-headers.c, but the coalescing loop still removes merged ranges using g_array_remove_index() for each coalesced element. Because GArray is contiguous, each mid-array removal performs an O(N) memmove. When many identical satisfiable ranges are supplied (for example bytes=0-0 repeated thousands of times), the loop performs O(N²) work coalescing them into a single range. The vulnerable path is reachable server-side from handle_partial_get() in libsoup/server/http1/soup-server-message-io-http1.c when a SoupServer handler returns HTTP 200 with a non-empty body. No authentication is required. The number of ranges is bounded only by the maximum request header size (~100 KiB), allowing roughly 25,000 ranges per request. This is a CPU exhaustion / availability issue only. No memory corruption or information disclosure occurs.(CVE-2026-77680)","status":"published","published":"2026-09-14T16:34:18Z","modified":"2026-09-13T16:45:42.470415774Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3825","title":"libsoup3 security update","description":"Libsoup is an HTTP library implementation in C. It was originally part of a SOAP (Simple Object Access Protocol) implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages.\r\n\r\nSecurity Fix(es):\n\nA heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soup_headers_parse() can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to crash an application using libsoup or potentially disclose heap memory contents.(CVE-2026-12548)\n\nThe fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading to malformed HTTP 206 responses and log flooding.(CVE-2026-12549)\n\nA vulnerability was found in libsoup\u0026apos;s WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.(CVE-2026-15711)\n\nA flaw was found in libsoup\u0026apos;s SoupServer HTTP Range header processing. The sort_ranges() comparator in soup-message-headers.c truncates a 64-bit subtraction result to 32-bit int, flipping the sign for range offsets differing by more than INT_MAX. This causes silent omission of requested byte ranges from HTTP 206 Partial Content responses on resources larger than approximately 2 GB.(CVE-2026-77014)\n\nAn algorithmic complexity flaw exists in libsoup\u0026apos;s HTTP Range header processing that persists after the CVE-2025-32907 fix. CVE-2025-32907 addressed memory amplification when a client repeated the same range many times in a single Range header. Commit 9bb92f7a corrected merge correctness in soup_message_headers_get_ranges_internal() in libsoup/soup-message-headers.c, but the coalescing loop still removes merged ranges using g_array_remove_index() for each coalesced element. Because GArray is contiguous, each mid-array removal performs an O(N) memmove. When many identical satisfiable ranges are supplied (for example bytes=0-0 repeated thousands of times), the loop performs O(N²) work coalescing them into a single range. The vulnerable path is reachable server-side from handle_partial_get() in libsoup/server/http1/soup-server-message-io-http1.c when a SoupServer handler returns HTTP 200 with a non-empty body. No authentication is required. The number of ranges is bounded only by the maximum request header size (~100 KiB), allowing roughly 25,000 ranges per request. This is a CPU exhaustion / availability issue only. No memory corruption or information disclosure occurs.(CVE-2026-77680)","status":"published","published":"2026-09-14T16:34:44Z","modified":"2026-09-13T16:45:45.766120702Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"RHSA-2026:68234","title":"Red Hat Security Advisory: libsoup security update","status":"published","published":"2026-09-17T10:18:14Z","modified":"2026-09-24T10:14:03Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"RHSA-2026:68235","title":"Red Hat Security Advisory: libsoup3 security update","status":"published","published":"2026-09-17T10:18:15Z","modified":"2026-10-15T10:24:35Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"RHSA-2026:68266","title":"Red Hat Security Advisory: libsoup security update","status":"published","published":"2026-09-17T10:18:15Z","modified":"2026-09-24T10:14:04Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"RHSA-2026:68612","title":"Red Hat Security Advisory: libsoup security update","status":"published","published":"2026-09-18T10:15:25Z","modified":"2026-09-24T10:14:12Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"RHSA-2026:69108","title":"Red Hat Security Advisory: libsoup security update","status":"published","published":"2026-09-21T10:14:48Z","modified":"2026-09-24T10:14:23Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"RHSA-2026:69297","title":"Red Hat Security Advisory: libsoup security update","status":"published","published":"2026-09-22T10:19:57Z","modified":"2026-09-24T10:14:32Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"RHSA-2026:69863","title":"Red Hat Security Advisory: libsoup security update","status":"published","published":"2026-09-22T10:20:15Z","modified":"2026-09-24T10:14:37Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"RHSA-2026:70598","title":"Red Hat Security Advisory: libsoup security update","status":"published","published":"2026-09-23T10:15:27Z","modified":"2026-09-24T10:15:00Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RHSA-2026:70599","title":"Red Hat Security Advisory: libsoup security update","status":"published","published":"2026-09-23T10:15:28Z","modified":"2026-09-24T10:15:00Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RHSA-2026:71389","title":"Red Hat Security Advisory: libsoup3 security update","status":"published","published":"2026-09-24T10:15:24Z","modified":"2026-09-24T10:31:56.006492648Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RLSA-2026:68234","title":"Moderate: libsoup security update","description":"The libsoup packages provide an HTTP client and server library for GNOME.\n\nSecurity Fix(es):\n\n* SoupWebsocketExtensionDeflate: libsoup: libsoup: WebSocket permessage-deflate Unbounded Decompression Remote Denial of Service (CVE-2026-15709)\n\n* libsoup: SoupWebsocketConnection: libsoup: WebSocket remote denial of service via oversized control frame protocol violation (CVE-2026-15711)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-09-17T06:06:39.358579Z","modified":"2026-09-17T06:30:02.284358629Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"RLSA-2026:68266","title":"Moderate: libsoup security update","description":"The libsoup packages provide an HTTP client and server library for GNOME.\n\nSecurity Fix(es):\n\n* libsoup: SoupWebsocketConnection: libsoup: WebSocket remote denial of service via oversized control frame protocol violation (CVE-2026-15711)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-09-17T12:01:09.856303Z","modified":"2026-09-17T12:30:02.610890538Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"UBUNTU-CVE-2026-15711","description":"A vulnerability was found in libsoup's WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.","status":"published","published":"2026-07-14T20:16:00Z","modified":"2026-11-10T02:50:22.473897307Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-10T03:18:58.396217Z"},{"id":"ALSA-2026:68234","title":"Moderate: libsoup security update","description":"The libsoup packages provide an HTTP client and server library for GNOME.  \n\nSecurity Fix(es):  \n\n  * SoupWebsocketExtensionDeflate: libsoup: libsoup: WebSocket permessage-deflate Unbounded Decompression Remote Denial of Service (CVE-2026-15709)\n  * libsoup: SoupWebsocketConnection: libsoup: WebSocket remote denial of service via oversized control frame protocol violation (CVE-2026-15711)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-09-16T00:00:00Z","modified":"2026-10-29T11:32:32.047709795Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"ALSA-2026:68235","title":"Important: libsoup3 security update","description":"Libsoup is an HTTP library implementation in C. It was originally part of a SOAP (Simple Object Access Protocol) implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages. libsoup uses the Glib main loop and is designed to work well with GTK applications. This enables GNOME applications to access HTTP servers on the network in a completely asynchronous fashion, very similar to the Gtk+ programming model (a synchronous operation mode is also supported for those who want it), but the SOAP parts were removed long ago.  \n\nSecurity Fix(es):  \n\n  * SoupWebsocketExtensionDeflate: libsoup: libsoup: WebSocket permessage-deflate Unbounded Decompression Remote Denial of Service (CVE-2026-15709)\n  * libsoup: SoupWebsocketConnection: libsoup: WebSocket remote denial of service via oversized control frame protocol violation (CVE-2026-15711)\n  * libsoup: libsoup: Heap use-after-free in libsoup HTTP/2 client on_data_read() via GOAWAY during body upload (CVE-2026-85197)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-09-16T00:00:00Z","modified":"2026-10-29T11:30:42.306948996Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"ALSA-2026:68266","title":"Moderate: libsoup security update","description":"The libsoup packages provide an HTTP client and server library for GNOME.  \n\nSecurity Fix(es):  \n\n  * libsoup: SoupWebsocketConnection: libsoup: WebSocket remote denial of service via oversized control frame protocol violation (CVE-2026-15711)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-09-16T00:00:00Z","modified":"2026-10-29T11:02:29.359232286Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"AZL-92400","title":"CVE-2026-15711 affecting package libsoup 3.4.4-18","description":"A vulnerability was found in libsoup's WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.","status":"published","published":"2026-07-14T20:16:57Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:25.880689Z"},{"id":"CLSA-2026-1790063765","title":"libsoup: Fix of 3 CVEs","description":"- CVE-2026-15709: bound permessage-deflate inflation to the connection's\n  remaining max-incoming-payload-size allowance in\n  soup_websocket_extension_deflate_process_incoming_message_with_limit(),\n  so a compression bomb can no longer allocate without limit before the\n  post-inflation size check runs\n- CVE-2026-15711: reject a WebSocket control frame that declares an extended\n  payload length in process_frame(), which RFC 6455 section 5.5 forbids","status":"published","published":"2026-10-08T09:28:52Z","modified":"2026-10-26T09:31:35.722848398Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CLSA-2026-1790076145","title":"libsoup: Fix of 3 CVEs","description":"- CVE-2026-15709: bound permessage-deflate inflation to the connection's\n  remaining max-incoming-payload-size allowance in\n  soup_websocket_extension_deflate_process_incoming_message_with_limit(),\n  so a compression bomb can no longer allocate without limit before the\n  post-inflation size check runs\n- CVE-2026-15711: reject a WebSocket control frame that declares an extended\n  payload length in process_frame(), which RFC 6455 section 5.5 forbids","status":"published","published":"2026-10-07T23:45:53Z","modified":"2026-10-26T09:30:51.100754374Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"openSUSE-SU-2026:12084-1","title":"libsoup-2_4-1-2.74.3-24.1 on GA media","description":"These are all security issues fixed in the libsoup-2_4-1-2.74.3-24.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-10-08T00:00:00Z","modified":"2026-10-09T17:23:13.819472723Z","updated_at":"2026-11-02T16:58:40.245664Z"},{"id":"openSUSE-SU-2026:12365-1","title":"libsoup-3_0-0-3.8.1-1.1 on GA media","description":"These are all security issues fixed in the libsoup-3_0-0-3.8.1-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-10-30T00:00:00Z","modified":"2026-10-31T18:00:03.938535156Z","updated_at":"2026-11-02T16:58:41.463445Z"},{"id":"openSUSE-SU-2026:22181-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-12547: Header \"Proxy-Authorization\" leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-12548: out-of-bounds read in multipart body parser due to an integer truncation (bsc#1272196).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15712: SoupClientMessageIOHTTP2: HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL-\n  termination assumption (bsc#1271447).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers\n  via an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-102555: Heap buffer overflow via uninitialized length in data-URI base64 decoding (bsc#1283299).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-29T10:24:12Z","modified":"2026-10-31T18:00:09.296668455Z","updated_at":"2026-11-02T16:58:42.426393Z"},{"id":"ROOT-OS-DEBIAN-12-CVE-2026-15711","title":"CVE-2026-15711 in libsoup2.4 - Patched by Root","description":"Root has patched CVE-2026-15711 in the libsoup2.4 package for Root:Debian:12. Multiple fixed versions available.","status":"published","published":"2026-09-11T06:48:05Z","modified":"2026-09-11T07:15:05.174317565Z","updated_at":"2026-11-02T15:53:31.773105Z"},{"id":"ROOT-OS-DEBIAN-13-CVE-2026-15711","title":"CVE-2026-15711 in libsoup3 - Patched by Root","description":"Root has patched CVE-2026-15711 in the libsoup3 package for Root:Debian:13. Multiple fixed versions available.","status":"published","published":"2026-11-04T14:29:10Z","modified":"2026-11-04T15:15:06.229166776Z","updated_at":"2026-11-04T15:39:09.547857Z"},{"id":"SUSE-SU-2026:24368-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-12547: Header \"Proxy-Authorization\" leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-12548: out-of-bounds read in multipart body parser due to an integer truncation (bsc#1272196).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15712: SoupClientMessageIOHTTP2: HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL-\n  termination assumption (bsc#1271447).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers\n  via an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-102555: Heap buffer overflow via uninitialized length in data-URI base64 decoding (bsc#1283299).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-21T08:56:44Z","modified":"2026-10-27T17:23:18.80097485Z","updated_at":"2026-11-02T15:54:04.519245Z"},{"id":"SUSE-SU-2026:24470-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-12547: Header \"Proxy-Authorization\" leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-12548: out-of-bounds read in multipart body parser due to an integer truncation (bsc#1272196).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15712: SoupClientMessageIOHTTP2: HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL-\n  termination assumption (bsc#1271447).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers\n  via an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-102555: Heap buffer overflow via uninitialized length in data-URI base64 decoding (bsc#1283299).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-29T10:24:20Z","modified":"2026-11-04T17:23:18.62343932Z","updated_at":"2026-11-04T17:43:22.558805Z"},{"id":"SUSE-SU-2026:4557-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-12478: websocket: Fix out-of-bounds read when reading unmasked frame (bsc#1271401).\n- CVE-2026-12547: Header 'Proxy-Authorization' leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15712: SoupClientMessageIOHTTP2: HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL-\n  termination assumption (bsc#1271447).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers via\n  an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n","status":"published","published":"2026-10-07T08:50:59Z","modified":"2026-10-08T19:15:05.003072023Z","updated_at":"2026-11-02T15:54:05.838224Z"},{"id":"SUSE-SU-2026:4558-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-12478: websocket: Fix out-of-bounds read when reading unmasked frame (bsc#1271401).\n- CVE-2026-12547: Header 'Proxy-Authorization' leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15712: SoupClientMessageIOHTTP2: HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL-\n  termination assumption (bsc#1271447).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers via\n  an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n","status":"published","published":"2026-10-07T08:51:33Z","modified":"2026-10-08T19:15:03.7279804Z","updated_at":"2026-11-02T15:54:05.838224Z"},{"id":"SUSE-SU-2026:4690-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-12478: websocket: Fix out-of-bounds read when reading unmasked frame (bsc#1271401).\n- CVE-2026-12547: Header 'Proxy-Authorization' leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers via\n  an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-16T08:41:55Z","modified":"2026-10-17T10:00:05.096101754Z","updated_at":"2026-11-02T15:54:05.838224Z"},{"id":"SUSE-SU-2026:4703-1","title":"Security update for libsoup2","description":"This update for libsoup2 fixes the following issues:\n\n- CVE-2026-12547: Header 'Proxy-Authorization' leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers via\n  an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-77014: Integer truncation in sort_ranges() comparator causes silent omission of HTTP Range responses\n  (bsc#1275988).\n- CVE-2026-77680: quadratic CPU denial of service in HTTP Range coalescing after the CVE-2025-32907 fix (bsc#1276759).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-16T13:29:46Z","modified":"2026-10-17T10:00:04.12517112Z","updated_at":"2026-11-02T15:54:05.838224Z"},{"id":"SUSE-SU-2026:4739-1","title":"Security update for libsoup2","description":"This update for libsoup2 fixes the following issues:\n\n- CVE-2026-12547: Header 'Proxy-Authorization' leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers via\n  an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-77014: Integer truncation in sort_ranges() comparator causes silent omission of HTTP Range responses\n  (bsc#1275988).\n- CVE-2026-77680: quadratic CPU denial of service in HTTP Range coalescing after the CVE-2025-32907 fix (bsc#1276759).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-19T12:59:37Z","modified":"2026-10-20T10:45:04.185304919Z","updated_at":"2026-11-02T15:54:05.838224Z"}]}}